I just got a 2000 Avalon with about 50k. The paperwork says the last oil change was with "Mobil 5w30 Drive Clean" oil. I have no idea if this is conventional or synthetic - I called Mobil and even they didnt know. So the question is, do I go synthetic or conventional here? I dont want problems and this is one of those Toyota sludge engines.
Anyone know if that oil was synth or conventional? Either way, what do y'all recommend?
Anyone know if that oil was synth or conventional? Either way, what do y'all recommend?